Upgrading of a Heavy Ion 1MeV ISR RFQ Accelerator

ZHANG Meng; LU Yuan-Rong; PENG Shi-Xiang; ZHU Kun; YAN Xue-Qing; GAO Shu-Li; WANG Zhi; GUO Zhi-Yu; ZHAO Jie; FANG Jia-Xun; LI Wei-Guo; GUO Ju-Fang; YUAN Zhong-Xi; SONG Zhi-Zhong; YU Jin-Xiang; YU Mao-Lin; CHEN Jia-Er

Chinese Physics C> 2008, Vol. 32> Issue(S1) : 262-264

Upgrading of a Heavy Ion 1MeV ISR RFQ Accelerator

Abstract
HTML
Reference
Related

PDF

Abstract：
This paper presents new beam test results for O⁺ beam on a high current Integral Split Ring Radio Frequency Quadruple (ISR RFQ) accelerator. After the upgrading, a new designed 2.45GHz O⁺ ECR Ion Source can provide a beam with macro-pulse peak current of 4mA at the injection point behind a 15mm diaphragm, whose O⁺ factor is 60%—80% varied with gas flow rate and the normalized rms emittance is less than 0.15πmm﹒mrad. The accelerated O⁺ beam current goes up to 2mA with the transmission of about 80% at 45kW RF power with duty factor 1/6 (pulse duration of 1ms and repetition frequency of 166Hz). The upgraded RF power system includes low level RF pulse modulation amplifier, AGC, 3W and 20W preamplifiers, 1kW driver and 30kW final amplifier, which can output nearly 50kW in pulsed mode. The vacuum has been improved, too. The upgraded 1MeV ISR RFQ can be used as the beam injector of a new designed SFRFQ accelerating system, which is under the construction at Peking University.

References

[1]

. CHEN C E et al. Proceedings of EPAC2000, Vienna, 2000.1850-18522. LU Y R et al. Nucl. Instrum. and Methods, 2003, A515: 394-4013. YAN X Q et al. Phys. Rev. ST Accel. Beams, 2006, 9: 0201014. CHEN Jia-Er et al. Chin. Phys. C (HEP NP), 2008, 32(Supp.Ⅰ): 231(in Chinese)(陈佳洱等. 中国物理C, 2008, 32(增刊Ⅰ): 231)5. ZHANG Meng et al. Chin. Phys. C (HEP NP), 2008, 32(Supp.Ⅰ): 220(in Chinese)(张萌等. 中国物理C, 2008, 32(增刊Ⅰ): 220)

[1]	ZHANG Meng , PENG Shi-Xiang , SONG Zhi-Zhong , ZHAO Jie , XU Rong , YUAN Zhong-Xi , GUO Zhi-Yu , LU Yuan-Rong , YU Jin-Xiang . Experimental Results of an ECR Oxygen Source and a LEBT System for 1MeV ISR RFQ Accelerator Upgrade Project. Chinese Physics C, 2008, 32(S1): 220-222.
[2]	ZHENG Chuan , XIAO Zhi-Gang , XU Hu-Shan , XIAO Guo-Qing , ZHAN Wen-Long , LI Zhan-Kui , DUAN Li-Min , SUN Zhi-Yu , YAO Nan , YUAN Xiao-Hua , ZHANG Xue-Ying , WANG Jian-Song , , , , . Hadron Physics Programs at HIRFL-CSRm: Plan and Status. Chinese Physics C, 2007, 31(12): 1177-1180.
[3]	LIU Wei , GUO Zhi-Yu , YAN Xue-Qing , LU Yuan-Rong , ZHU Kun , GAO Shu-Li , FANG Jia-Xun , R.A.Jameson , CHEN Jia-Er . Optimization Study of the 1MeV RFQ at Peking University. Chinese Physics C, 2007, 31(8): 783-786.
[4]	PENG Shi-Xiang , SONG Zhi-Zhong , QIAN Feng , YUAN Zhong-Xi , XU Rong , YU Jin-Xiang , GUO Zhi-Yu . An ECR Oxygen Source and a LEBT System Developed for 1 MeV ISR RFQ Accelerator Upgrade. Chinese Physics C, 2007, 31(S1): 63-65.
[5]	LI Zhi-Hui , ZHANG Jin-Quan , LIU Yong , XIA Jia-Wen , ZHAO Hong-Wei , ZHAN Wen-Long . Development of the Lanzhou Heavy Ion Linac. Chinese Physics C, 2006, 30(S1): 129-131.
[6]	YANG Xue-Qing , FANG Jia-Xun , GUO Zhi-Yu , CHEN Jia-Rong . Matching Design Method for High Intensity RFQ Accelerators. Chinese Physics C, 2006, 30(S1): 19-21.
[7]	GUO Zhi-Yu , XIE Yi , LIU Ke-Xin , FANG Jia-Xun , YANG Xue-Qing , CHEN Jia-Rong . Physical Design of A Low-Energy-Spread RFQ Accelerator. Chinese Physics C, 2006, 30(S1): 114-116.
[8]	FANG Jia-Xun , YANG Xue-Qing , LI Wei-Guo , GUO Zhi-Yu , GUO Jiu-Fang , LU Yuan-Rong , GAO Shu-Li , ZHU Kun , WANG Zhi , YU Mao-Lin , CHEN Jia-Rong . Study of physical Performances for Separated Function RFQ. Chinese Physics C, 2006, 30(S1): 16-18.
[9]	HUANG Wen-Xue , WANG Yue , XU Hu-Shan , SUN Zhi-Yu , LI Zhan-Kui , XIAO Guo-Qing , ZHAN Wen-Long . Extraction System for RFQ Cooler and Buncher. Chinese Physics C, 2005, 29(8): 802-805.
[10]	FU Shi-Nian , OUYANG Hua-Fu , XU Tao-Guang . Study on the Function of Dipole Stabilizer Rods in an RFQ Accelerator. Chinese Physics C, 2005, 29(3): 295-300.
[11]	GUO Zhi-Yu , FANG Jia-Xun , GUO Ju-Fang , LI Wei-Guo , YU Mao-Lin , GAO Shu-Li , GUAN Xia-Ling , FU Shi-Nian , OUYANG Hua-Fu , XU Wen-Wu , XU Tao-Guang . Development and Measurements of a Technological Cavity for 350MHz High Current Proton RFQ. Chinese Physics C, 2004, 28(7): 762-766.
[12]	XING Qing-Zi , LIN Yu-Zheng , FU Shi-Nian , FANG Shou-Xian . Study of Simultaneous Acceleration of Positive and Negative Ion Beams by Dynamic Simulation in RFQ. Chinese Physics C, 2004, 28(6): 659-663.
[13]	SHANG Lei , LUO Xue-Fang , WANG Wei , HONG Jun , LU Ye-Ming , ZHANG Yi , ZHAO Feng . Design and Upgrading of HLS Linac Modulators. Chinese Physics C, 2003, 27(12): 1133-1137.
[14]	XING Qing-Zi , FU Shi-Nian , LIN Yu-Zheng , FANG Shou-Xian . Calculation of Beam Acceptance for RFQ Accelerators. Chinese Physics C, 2003, 27(7): 628-632.
[15]	GUO WeiMing , YU QingChang . Design Study of a Injector of Proton Accelerator 714MHz RFQ. Chinese Physics C, 2000, 24(3): 262-268.
[16]	REN XiaoTang , Lu YuanRong , YU JinXiang , WANG ZhongYi , LI WeiGuo , GUO JuFang , SONG ZhiZhong , LI YuSong , FANG JiaXun , CHEN JiaEr . Experimental Research on Simultaneous Acceleration of Positive and Negative Ions with Equal q/m in an ISR RFQ. Chinese Physics C, 2000, 24(4): 347-351.
[17]	Luo Zihua , Wang Shuhong . Design and Study of Beam Dynamics for the BPL-RFQ. Chinese Physics C, 1995, 19(7): 658-666.
[18]	WANG Shu-Hong . RFQ's Beam Dynamics and RF Structure. Chinese Physics C, 1993, 17(4): 310-321.
[19]	LOU ZI-HUA . REDUCTION OF THE BEAM ENERGY SPREAD OF RFQ BY DEBUNCHER. Chinese Physics C, 1982, 6(4): 507-511.
[20]	LUO ZI-HUA , LUO YING-XIONG , WANG LIN-LIN . STUDY OF THE BEAM TRAMSVERSE MOTION IN THE RFQ STRUCTURE. Chinese Physics C, 1982, 6(6): 688-696.

Access

Get Citation

ZHANG Meng, LU Yuan-Rong, PENG Shi-Xiang, ZHU Kun, YAN Xue-Qing, GAO Shu-Li, WANG Zhi, GUO Zhi-Yu, ZHAO Jie, FANG Jia-Xun, LI Wei-Guo, GUO Ju-Fang, YUAN Zhong-Xi, SONG Zhi-Zhong, YU Jin-Xiang, YU Mao-Lin and CHEN Jia-Er. Upgrading of a Heavy Ion 1MeV ISR RFQ Accelerator[J]. Chinese Physics C, 2008, 32(S1): 262-264.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2008-01-11
Revised: 1900-01-01

Article Metric

Article Views(3631)
PDF Downloads(1046)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Upgrading of a Heavy Ion 1MeV ISR RFQ Accelerator

Corresponding author: ZHANG Meng,

Received Date: 2008-01-11

Accepted Date: 1900-01-01

Available Online: 2008-01-04

Abstract: This paper presents new beam test results for O⁺ beam on a high current Integral Split Ring Radio Frequency Quadruple (ISR RFQ) accelerator. After the upgrading, a new designed 2.45GHz O⁺ ECR Ion Source can provide a beam with macro-pulse peak current of 4mA at the injection point behind a 15mm diaphragm, whose O⁺ factor is 60%—80% varied with gas flow rate and the normalized rms emittance is less than 0.15πmm﹒mrad. The accelerated O⁺ beam current goes up to 2mA with the transmission of about 80% at 45kW RF power with duty factor 1/6 (pulse duration of 1ms and repetition frequency of 166Hz). The upgraded RF power system includes low level RF pulse modulation amplifier, AGC, 3W and 20W preamplifiers, 1kW driver and 30kW final amplifier, which can output nearly 50kW in pulsed mode. The vacuum has been improved, too. The upgraded 1MeV ISR RFQ can be used as the beam injector of a new designed SFRFQ accelerating system, which is under the construction at Peking University.

HTML

Reference (1)

Upgrading of a Heavy Ion 1MeV ISR RFQ Accelerator

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article